CustomizableMultiselectField class

A FormField that contains a CustomizableMultiselectWidget.

This is a widget that wraps a CustomizableMultiselectWidget widget in a FormField.

A Form ancestor is not required. The Form simply makes it easier to save, reset, or validate multiple fields at once. To use without a Form, pass a GlobalKey to the constructor and use GlobalKey.currentState to save or reset the form field.

{@tool snippet}

CustomizableMultiselectField(
   dataSourceList: [
     DataSource<String>(
       dataList: [
         {
           'label': 'Lime',
           'value': 'test1',
         },
       ],
       valueList: fruitListValue,
       options: DataSourceOptions(valueKey: 'value', labelKey: 'label', title: Text('Fruits', style: TextStyle(color: Colors.red), textAlign: TextAlign.start,)),
     ),
   ],
   onChanged: ((List<List<dynamic>> value) => print(value)),
   onSaved: ((List<List<dynamic>> newValueList) {
     setState(() {
       valueList = newValueList;
     });
   }),
   validator: ((List<List<dynamic>> value) {
     if(value.every((element) => element.isEmpty))
       return 'Please Select a value!';
     return null;

   })
 ),

{@end-tool}

Inheritance

Constructors

CustomizableMultiselectField({Key? key, FormFieldSetter<List<List>>? onSaved, FormFieldValidator<List<List>>? validator, AutovalidateMode autovalidateMode = AutovalidateMode.disabled, ValueChanged<List<List>>? onChanged, InputDecoration? decoration, required List<DataSource> dataSourceList, CustomizableMultiselectDialogOptions customizableMultiselectDialogOptions = const CustomizableMultiselectDialogOptions(), CustomizableMultiselectWidgetOptions customizableMultiselectWidgetOptions = const CustomizableMultiselectWidgetOptions()})

Properties

autovalidateMode → AutovalidateMode
Used to enable/disable this form field auto validation and update its error text.
finalinherited
builder → FormFieldBuilder<List<List>>
Function that returns the widget representing this form field.
finalinherited
customizableMultiselectDialogOptions → CustomizableMultiselectDialogOptions
The options of the Multiselect dialog.
final
customizableMultiselectWidgetOptions → CustomizableMultiselectWidgetOptions
The options of the Multiselect input.
final
dataSourceList → List<DataSource>
The list that contains DataSource elements to show in the CustomMultiselectField.
final
enabled → bool
Whether the form is able to receive user input.
finalinherited
errorBuilder → FormFieldErrorBuilder?
Function that returns the widget representing the error to display.
finalinherited
forceErrorText → String?
An optional property that forces the FormFieldState into an error state by directly setting the FormFieldState.errorText property without running the validator function.
finalinherited
hashCode → int
The hash code for this object.
no setterinherited
initialValue → List<List>?
An optional value to initialize the form field to, or null otherwise.
finalinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
onReset → VoidCallback?
An optional method to call when the form field is reset via FormFieldState.reset.
finalinherited
onSaved → FormFieldSetter<List<List>>?
An optional method to call with the final value when the form is saved via FormState.save.
finalinherited
restorationId → String?
Restoration ID to save and restore the state of the form field.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
validator → FormFieldValidator<List<List>>?
An optional method that validates an input. Returns an error string to display if the input is invalid, or null otherwise.
finalinherited

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → _CustomizableMultiselectFieldState
Creates the mutable state for this widget at a given location in the tree.
override
debugDescribeChildren() → List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String
A string representation of this object.
inherited
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug, int wrapWidth = 65}) → String
Returns a string representation of this node and its descendants.
inherited
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String
Returns a one-line detailed description of the object.
inherited
toStringShort() → String
A short, textual description of this widget.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited